Patients undergo leukapheresis to obtain peripheral blood mononuclear cells (PBMC). The PBMC are incubated over 7 days with sargramostim (GM-CSF) and interleukin-4 to produce dendritic cells (DC). The DC are incubated over 2-3 days with the irradiated tumor cells from the autologous tumor cell line for antigen loading of the DC.